I find that .info domains don't naturally rank as well as .com's in organic search results But if you are using PPC - it won't make any difference.
It doesn't matter. Most of domains I use for AdSense are .info's but generic keywords. If you get generic traffic most of your traffic comes from US and Canada you get higher priced clicks.
.info & .com don't determine your Earning Per Click (EPC)...it all depends on the traffic you get. But with that said... .info are typically harder to rank in the SERP when compared to .com because of the blackhatters using .info to promote spammy sites. BUT... that also doesn't matter because within time the site that has the most BL will be on top of the SERP, doesn't matter if it's a .info or .com! For myself, I would go with a .com because of the better resale value if I ever decide to sell my site.
Well .com always ranks higher than .info as far as I have seen. But you never know all depends on SEO
Don't go for .info's always prefer .com,.net,.org These are the main tld preferred by both search engine and common people